
Examples of Operation Commands
RS232 Control 17
Asking (Get) and Telling (Set)
To ask about a value or condition, use a question mark [ ? ]. No character should
follow the question mark. To set a value or condition, use an equal sign [ = ]. A value
must follow the equal sign.
Get and Set Commands Compared
Command Example
1
1
The command line must always end with a carriage return character, noted in the exam-
ples above as [CR]. The Runco WindowWall will not act on the command unless the last
character is a carriage return character (ascii hex value: 0D).
Explanation
op A1 contrast ? [CR]
Asks what the contrast is set to on tile A1.
op A* contrast = 128 [CR]
Sets the contrast on all tiles connected to Quad Input
Manager Module
A to 128.
op A* contrast ? [CR]
Won’t work. All queries [ ? ] must be addressed to
individual tiles only; no asterisks [ * ] in the
command line.
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